From labels and weed guides

Best herbicides for marshelder in safflower

For marshelder in safflower, the weed guides list 2 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for safflower.

Marshelder control in safflower

Every listed product is labeled for safflower. Ratings are shown when each weed guide that rates this weed has a lower interval bound of at least 80% control for the active-ingredient group. If a guide gives a range, its lower bound must be at least 80%.

Based on 1 weed guide, 2 active-ingredient groups are rated at least 80% control for marshelder in safflower.

Example productActive ingredientsMOA groupRatings checked
Bonedry
EPA 82557-1; same active ingredients on 13 other branded products
paraquat22ND Weed Guide 2026: G → 80–90% control (PDF)
Harmony SG
EPA 279-9595
thifensulfuron2ND Weed Guide 2026: G-E → 80–99% control (PDF)

Rating bands: E 90-100%, G 80-89%, F 70-79%, P under 70%, N none. Policy intervals are marked in the source ratings. A range such as G-E means the guide gives a range; 'a' after a rating (e.g., Ga) means the guide assumes its recommended additive. Read the rating method.

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Sources

Data from current labels and weed guides. Last source update: 2026-09-30.